According to Joseph Schumpeter, many Midwestern railroads:
a. were built too late and thus faced heavy competition from trucks.
b. were built ahead of demand.
c. were unnecessary because they followed routes already adequately served by other means of transportation.
d. would have been built more quickly in the absence of government aid.
Question 2
Gains in railroad productivity were caused by:
a. more powerful locomotives.
b. automatic couplers.
c. air brakes.
d. All of the above are correct.
e. Only a and b are correct.